
#test{
    width: 1221px;
    height: 502px;
    margin: 50px auto;
    perspective: 800px;
    position: relative;
}

#banner{
    height: 502px;
    width: 1221px;
    margin: 0 auto;
    transition: transform 0.1s;
    box-shadow: 0 15px 15px rgba(0,0,0,0.25);
}
.yang2{
    display: inline-block;
    list-style-type: none;
    border:1px solid #fff;
    width: 10px;
    height: 10px;
    background-color: #dcdcdc;
    border-radius: 50%;
    stransition:all 1s;
}
.yang{
    display: inline-block;
    list-style-type: none;
    border:1px solid #fff;
    width: 10px;
    height: 10px;
    background-color: #000;
    border-radius: 50%;
    stransition:all 1s;
}
.ding{
    position: absolute;
    top:430px;
    margin-left: -35px;
    left:50%;
}
.bt{
    display: inline-block;
    list-style-type: none;
}
.bt ul li{
    display: inline-block;
    list-style-type: none;
}
.zuo3{
    position: absolute;
     top:200px;
     left: 50px;
     width: 50px;
     height: 100px;
     background-color: #000;
     line-height:100px;
     color: #fff;
     opacity: 0.1;
 }
.you3{
    position: absolute;
    top:200px;
    left: 1130px;
    width: 50px;
    height: 100px;
    background-color: #000;
    line-height:100px;
    color: #fff;
    opacity: 0.1;
}